• Interface module

PCI20U series

Article: 00063382

Interface module

The PCI standard requires that plug-in boards use a +3.3 V power source provided by the PC’s motherboard, making the +5 power obsolete. In response to this development, Contemporary Controls introduced a universal-voltage PCI ARCNET Network Interface Module (NIM) which is compatible with both +3.3 Volt and older, 5-Volt computers.

The PCI20U product is a drop-in replacement for the PCI20, +5 V PCI card which removes any work needed by the user to migrate to +3.3 V PCI or PCI-X slot motherboards. This demonstrates the company’s commitment to ARCNET technology and to their customers’ requirements for legacy installations.

PCI-X is an enhancement to the original PCI Local Bus Specification enabling devices to operate at speeds up to 133 MHz. If a PCI20U is installed into a bus capable of PCI-X operation, the clock remains at the 33 MHz frequency?restricting all other devices on that bus to the conventional PCI protocol.

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